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<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link rel="stylesheet" href="css/main.css" />
</head>

<body>
  <div class="fly-intro">
    <div class="intro">
      <h3>玩法介绍：</h3>
      <span>点击开始后，按动鼠标左键使小鸟挥动翅膀，碰到地面或管道则游戏失败</span>
    </div>
    <div id="game-box">
      <div id="land"></div>
      <div id="bird"></div>
      <div id="cover"></div>
      <!-- 【新增代码】管子 -->
      <div id="pipe1_up"></div>
      <div id="pipe1_down"></div>
      <div id="pipe2_up"></div>
      <div id="pipe2_down"></div>
      <!-- 【新增】重玩按钮 -->
      <div id="restart"></div>
    </div>
  </div>

  <script src="js/js.js"></script>
</body>

</html>
